Worldwide wastewater treatment observatory · 
Greece
Aguas SB Observatory · public data to understand water
WWTP GASTOUNI
Greece · official identifier EL23301001070111
12,833h-e design capacity (2022) · 136th of 273
Facility inactive according to reported data. Historical profile: excluded from current aggregates.
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier EL23301001070111 · reported size 12,833 h-e design capacity · reported treatment: PST · data year 2022. 136th of 273 records with reported size in the inventory of Greece; 0.09 % of the sum of those 273 records in h-e (sum of records, not national capacity); nearest inventoried plant at 8.1 km · 1 within 10 km. Reported data with their source; estimates are not measurements of the plant.
Aguas SB does not manage this wastewater treatment plant.
WHAT THE DATA REPORT
Reported data official data · 2022
| Treatment | primary + secondary + tertiary (more stringent) (as reported to the EEA: PST) · reported levels |
|---|---|
| Nitrogen removal | yes |
| Phosphorus removal | yes |
| UV disinfection | yes |
| Status | inactive according to reported data |
| Reported coordinates | 37.8224, 21.2405 precision reported by the source: level 2 what it means |
| Source and year | European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · dataset record |
REGULATORY REFERENCES
Referencia normativa: Greece
Regulatory framework of Greece · Directive (EU) 2024/3019: reported-capacity band 10,000 to 149,999 p.e.; obligations are set by agglomeration load, not by the capacity of this plant. Individual applicability is not determined in this profile.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Amaliada | 8.1 km | 23,833 | 16,830 | primary, secondary and tertiary |
| Lechena | 14.2 km | 13,933 | 10,306 | primary, secondary and tertiary |
| Pyrgos | 27.5 km | 35,000 | 25,000 | primary, secondary and tertiary |
| Zakynthos | 32.1 km | 43,333 | 44,550 | primary, secondary and tertiary |
| Archea Olympia | 39.1 km | 11,833 | 2,472 | primary, secondary and tertiary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP GASTOUNI report?
Reported size: 12,833 h-e design capacity. Units are retained without conversion.
What treatment is reported?
Treatment PST. Nitrogen, phosphorus and UV are shown only when explicitly reported.
SOURCE AND CORRECTIONS
Source
reported data · European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · data 2022 · edition 2023 · source licence: CC BY 4.0 · JSON for this plant · suggest a correction · catalogue 2026-11-06. Reported data, not a current inspection; no compliance judgements.